US5476479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Handle for endoscopic surgical instruments and jaw structure
Assignee: United States Surgical Corp
•
Filing: 1995-01-11
•
Granted: 1995-12-19
•
Expires: 2015-01-11
Abstract
Abstract An endoscopic or laparoscopic surgical instrument having an internally disposed ratchet mechanism located within a barrel portion of a handle assembly. The instrument includes a handle assembly having a pivoting handle and a stationary handle, a barrel portion to which an elongated body assembly is secured, and a ratchet mechanism for releasably positioning a tool mechanism located at the distal end of the body assembly at various increments. The ratchet mechanism comprises a pawl member and a rack member which are disposed within the handle assembly. A rotational knob and locking member may also be provided to lock the body assembly at various orientations to the longitudinal axis. The tool assembly includes novel atraumatic jaw mechanisms incorporating flexural characteristics to better gauge the force being applied to the captured tissue. The novel jaw mechanisms further includes increased tissue gripping surface area and multiple tissue handling portions which allow users to use fewer instruments and reduce the time to perform procedures.
Inventors
- 👤 David T. Green
- 👤 Ernest Aranyi
- 👤 Ian J. Tovey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:21
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/28; A61B17/29; A61B17/2909; A61B17/2812; A61B17/282; A61B17/2833; A61B2017/2837; A61B2017/2926; A61B2017/2927; A61B2017/2929; A61B2017/2932; A61B2017/2933; A61B2017/2936; A61B2017/2939
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
128 words
An endoscopic or laparoscopic surgical instrument comprising: a handle assembly; an endoscopic portion having a proximal end connected to said handle assembly and a distal end mounting a jaw mechanism, said jaw mechanism including a pair of jaw members disposed in opposing relation wherein at least one jaw member is movable such that said jaw members may be positioned in at least an open position and a closed position, each said jaw member having a distal portion defining a first plane and including an elongated tissue gripping face, and a proximal jaw mounting portion defining a second plane substantially perpendicular to said first plane, each said jaw member further including at least one arcuate transition area intermediate said proximal portion and said distal portion to facilitate jaw flexure.
Claim 2
Dependent Claim
128 words
An endoscopic or laparoscopic surgical instrument comprising: a handle assembly; an endoscopic portion having a proximal end connected to said handle assembly and a distal end mounting a jaw mechanism, said jaw mechanism including a pair of jaw members disposed in opposing relation wherein at least one jaw member is movable such that said jaw members may be positioned in at least an open position and a closed position, each said jaw member having a distal portion defining a first plane and including an elongated tissue gripping face, and a proximal jaw mounting portion defining a second plane substantially perpendicular to said first plane, each said jaw member further including at least one arcuate transition area intermediate said proximal portion and said distal portion to facilitate jaw flexure.
Claim 3
Dependent Claim
30 words
An endoscopic or laparoscopic surgical instrument according to claim 1 wherein said opposing jaw members are relatively pivotal about a common point between said open position and said closed position.
Claim 4
Dependent Claim
51 words
An endoscopic or laparoscopic surgical instrument according to claim 1 wherein at least one of said tissue gripping faces includes a plurality of teeth disposed thereon such that when said jaw members are in said closed position tissue may be contacted by said teeth and gripped between said opposing jaw members.
Claim 5
Dependent Claim
20 words
An endoscopic or laparoscopic surgical instrument according to claim 3 wherein each of said teeth has a truncated semicircular geometry.
Claim 6
Dependent Claim
47 words
An endoscopic or laparoscopic surgical instrument according to claim 1 wherein each of said tissue gripping faces includes a plurality of teeth disposed thereon such that when said jaw members are in said closed position tissue may be gripped between said teeth of said opposing jaw members.
Claim 7
Dependent Claim
20 words
An endoscopic or laparoscopic surgical instrument according to claim 5 wherein each of said teeth has a truncated semicircular geometry.
Claim 8
Dependent Claim
52 words
An endoscopic or laparoscopic surgical instrument according to claim 5 wherein said teeth are disposed on each of said tissue gripping faces such that when said jaw members are in said closed position said teeth of each of said opposing jaw members abuts with corresponding teeth of said other opposing jaw member.
Claim 9
Dependent Claim
24 words
An endoscopic or laparoscopic surgical instrument according to claim 7 further comprising a linkage mechanism for pivoting said jaws between open and closed positions.
Claim 10
Dependent Claim
52 words
An endoscopic or laparoscopic surgical instrument according to claim 5, wherein said teeth are disposed on each of said tissue gripping faces such that when said jaw members are in said closed position said teeth of each of said opposing jaw members meshes with corresponding teeth of said other opposing jaw member.
Claim 11
Dependent Claim
28 words
An endoscopic or laparoscopic surgical instrument according to claim 1, further comprising an actuation mechanism extending from said handle assembly and adapted to remotely actuate said jaw mechanism.
Claim 12
Dependent Claim
40 words
An endoscopic or laparoscopic surgical instrument according to claim 1, wherein said elongated tissue gripping face of each of said jaw members is in close cooperative alignment with one another when said opposing jaw members are in said closed position.
Claim 13
Dependent Claim
52 words
An endoscopic or laparoscopic surgical instrument according to claim 1, wherein each of said distal portions of said jaw members has a semicircular face such that, when said jaw members are in said closed position, said semicircular face of said distal portions provides a substantially circular opening adapted for enclosing tissue therein.
Claim 14
Dependent Claim
129 words
An endoscopic or laparoscopic surgical instrument comprising: a handle portion; an endoscopic portion having a proximal end connected to said handle portion and a distal end mounting an atraumatic jaw mechanism, said atraumatic jaw mechanism including a pair of jaw members disposed in opposing relation wherein at least one jaw member is movable such that said jaw members may be positioned in at least an open position and a closed position, each said jaw member having a proximal portion including means for cooperating with a linkage member and a distal portion including a tissue gripping face disposed in a plane substantially perpendicular to the plane of said proximal portion, each said jaw member further including a plurality of arcuate transition areas intermediate said proximal portion and said distal portion.
Claim 15
Dependent Claim
129 words
An endoscopic or laparoscopic surgical instrument comprising: a handle portion; an endoscopic portion having a proximal end connected to said handle portion and a distal end mounting an atraumatic jaw mechanism, said atraumatic jaw mechanism including a pair of jaw members disposed in opposing relation wherein at least one jaw member is movable such that said jaw members may be positioned in at least an open position and a closed position, each said jaw member having a proximal portion including means for cooperating with a linkage member and a distal portion including a tissue gripping face disposed in a plane substantially perpendicular to the plane of said proximal portion, each said jaw member further including a plurality of arcuate transition areas intermediate said proximal portion and said distal portion.
Claim 16
Dependent Claim
54 words
An endoscopic or laparoscopic surgical instrument according to claim 13 wherein said distal portions of said jaw members each have a section of substantially semicircular shape such that, when said jaw members are in said closed position, said semicircular sections of said distal portions provide a substantially circular opening adapted for enclosing tissue therein.
Claim 17
Dependent Claim
47 words
An endoscopic or laparoscopic surgical instrument according to claim 23 wherein each of said tissue gripping faces includes a plurality of teeth disposed thereon such that when said jaw members are in said closed position tissue may be gripped between said teeth of said opposing jaw members.
Claim 18
Dependent Claim
28 words
An endoscopic or laparoscopic surgical instrument according to claim 13, further comprising an actuation mechanism extending from said handle portion and adapted to remotely actuate said jaw mechanism.
Claim 19
Dependent Claim
124 words
An endoscopic or laparoscopic surgical instrument comprising: a handle assembly; an endoscopic portion having a proximal end connected to said handle assembly and a distal end mounting an atraumatic jaw mechanism, said atraumatic jaw mechanism comprising: a pair of individual jaw members disposed in opposing relation and pivotally connected to said endoscopic portion and movable between at least an open position and a closed position, said endoscopic portion having a fixed longitudinal orientation with respect to said pair of individual jaw members, each of said individual jaw members comprising: a distal portion including a tissue engaging face; a proximal portion including a pivot mechanism adapted to cooperate with a linkage mechanism; and a flexible intermediate portion interconnecting said distal portion and said proximal portion.
Claim 20
Dependent Claim
124 words
An endoscopic or laparoscopic surgical instrument comprising: a handle assembly; an endoscopic portion having a proximal end connected to said handle assembly and a distal end mounting an atraumatic jaw mechanism, said atraumatic jaw mechanism comprising: a pair of individual jaw members disposed in opposing relation and pivotally connected to said endoscopic portion and movable between at least an open position and a closed position, said endoscopic portion having a fixed longitudinal orientation with respect to said pair of individual jaw members, each of said individual jaw members comprising: a distal portion including a tissue engaging face; a proximal portion including a pivot mechanism adapted to cooperate with a linkage mechanism; and a flexible intermediate portion interconnecting said distal portion and said proximal portion.
Claim 21
Dependent Claim
25 words
An endoscopic or laparoscopic surgical instrument according to claim 17, wherein said handle assembly includes a barrel portion, a stationary handle and a pivoting handle.
Claim 22
Dependent Claim
32 words
An endoscopic or laparoscopic surgical instrument according to claim 18, wherein said linkage mechanism comprises an inner rod member slidable within said endoscopic portion in response to movement of said handle assembly.
Claim 23
Dependent Claim
25 words
An endoscopic or laparoscopic surgical instrument according to claim 19, wherein said endoscopic portion comprises an outer tube member coaxially disposed about said inner rod.
Claim 24
Dependent Claim
45 words
An endoscopic or laparoscopic surgical instrument according to claim 20, further comprising a ratchet mechanism positioned within said barrel portion of said handle assembly, said ratchet mechanism engaging said body assembly to provide incremental positioning of said jaw members between said open and closed positions.
Claim 25
Dependent Claim
47 words
An endoscopic or laparoscopic surgical instrument according to claim 20, wherein said jaw members are precambered such that when they are pivoted to a closed position, a contact surface of the distal portions of said jaw members contact each other before said intermediate portions come in contact.
Claim 26
Dependent Claim
35 words
An endoscopic or laparoscopic surgical instrument according to claim 22, wherein said contact surface of the distal portions of said jaw members are provided with means for enhancing the grasping ability of said jaw members.
Claim 27
Dependent Claim
32 words
An endoscopic or laparoscopic surgical instrument according to claim 23, wherein said means for enhancing the grasping ability of said jaw members comprises a plurality of teeth formed on said contact surface.
Claim 28
Dependent Claim
26 words
An endoscopic or laparoscopic surgical instrument according to claim 23, wherein the distal portions of said jaw members are further provided with tissue expansion bores therein.
Claim 29
Dependent Claim
28 words
An endoscopic or laparoscopic surgical instrument according to claim 20, further comprising means for rotating said body assembly relative to said handle assembly to orient said jaw mechanism.
Claim 30
Dependent Claim
46 words
An endoscopic or laparoscopic surgical instrument according to claim 26, wherein said means for rotating said body assembly comprises a knob member circumferentially disposed about said body assembly and protruding radially outward from said body assembly through slots in said barrel portion in said handle assembly.
Claim 31
Dependent Claim
31 words
An endoscopic or laparoscopic surgical instrument according to claim 26, wherein said means for rotating said body assembly further comprises a stop means for arresting rotational movement of said body assembly.
Claim 32
Dependent Claim
53 words
An endoscopic or laparoscopic surgical instrument according to claim 17, wherein the distal portions of said jaw members each have a substantially semicircular shape such that, when said jaw members are pivoted to a closed position, the distal portions of said jaw members provide a substantially circular opening adapted for grasping tubular tissue.
Claim 33
Dependent Claim
32 words
An endoscopic or laparoscopic surgical instrument according to claim 17, wherein the distal portions of said jaw members are disposed in a plane substantially perpendicular to the plane of the proximal portions.
Claim 34
Dependent Claim
32 words
An endoscopic or laparoscopic surgical instrument according to claim 17, wherein the proximal portions of said jaw members are provided with camming slots for engaging a bearing surface on said linkage mechanism.
Claim 35
Dependent Claim
31 words
An endoscopic or laparoscopic surgical instrument according to claim 17, wherein the proximal portions of said jaw members include hinged connection means for connecting said jaw mechanism and said linkage mechanism.
Claim 36
Dependent Claim
202 words
An endoscopic or laparoscopic surgical instrument comprising: a handle assembly including a barrel portion, stationary handle and pivoting handle; a body assembly comprising a pair of coaxial members attached at one end to said handle assembly, including an inner rod member slidable within an outer tube member in response to movement of said handle assembly, said body assembly terminating at an end remote from said handle assembly in a reciprocally movable jaw mechanism, said jaw mechanism having a pair of individual jaw members disposed in opposing relation and pivotally connected to said outer tube member and movable between at least an open position and a closed position, each individual jaw member including a distal portion having a tissue engaging surface, a proximal portion including pivot means adapted to cooperate with said inner rod member and a flexible intermediate portion interconnecting said distal portion and said proximal portion, said body assembly further including a ratchet mechanism positioned within said barrel portion of said handle assembly, said ratchet mechanism including a rack means positioned on said inner rod member and a releasable pawl member which engages said ratchet means to provide for incremental positioning of said jaw members between said open and closed positions.
Claim 37
Dependent Claim
202 words
An endoscopic or laparoscopic surgical instrument comprising: a handle assembly including a barrel portion, stationary handle and pivoting handle; a body assembly comprising a pair of coaxial members attached at one end to said handle assembly, including an inner rod member slidable within an outer tube member in response to movement of said handle assembly, said body assembly terminating at an end remote from said handle assembly in a reciprocally movable jaw mechanism, said jaw mechanism having a pair of individual jaw members disposed in opposing relation and pivotally connected to said outer tube member and movable between at least an open position and a closed position, each individual jaw member including a distal portion having a tissue engaging surface, a proximal portion including pivot means adapted to cooperate with said inner rod member and a flexible intermediate portion interconnecting said distal portion and said proximal portion, said body assembly further including a ratchet mechanism positioned within said barrel portion of said handle assembly, said ratchet mechanism including a rack means positioned on said inner rod member and a releasable pawl member which engages said ratchet means to provide for incremental positioning of said jaw members between said open and closed positions.
References Cited (Backward Citations)
DE1065565B
Cited
US459818A
Cited
US1310982A
Cited
DE220437C
Cited
US825121A
Cited
US943263A
Cited
US1452373A
Cited
US1513367A
Cited
US1606497A
Cited
US1659112A
Cited
US1749261A
Cited
US1816952A
Cited
US1855546A
Cited
US2070670A
Cited
US2034785A
Cited
US2397823A
Cited
US2363334A
Cited
US2601513A
Cited
US2618268A
Cited
DE840884C
Cited
US2642871A
Cited
US2668538A
Cited
US2898916A
Cited
US2723666A
Cited
US2898915A
Cited
US2796065A
Cited
US2790437A
Cited
US3101715A
Cited
US3209753A
Cited
US3404677A
Cited
US3503398A
Cited
US3426757A
Cited
US3515139A
Cited
DE1566060A1
Cited
US3470872A
Cited
US3506012A
Cited
US3446211A
Cited
US3646939A
Cited
US4049714A
Cited
US3746002A
Cited
US3807406A
Cited
US3871379A
Cited
DE2327921A1
Cited
US3989033A
Cited
US3921641A
Cited
US4043323A
Cited
US4054143A
Cited
US4005714A
Cited
US3964468A
Cited
US4049002A
Cited
USD246190S
Cited
US4611595A
Cited
US4428374A
Cited
GB2044108B
Cited
DE3013836A1
Cited
GB2086792B
Cited
EP0065054A1
Cited
US4411653A
Cited
US4662371A
Cited
FR2542188A1
Cited
US4655219A
Cited
US4669647A
Cited
US4572185A
Cited
US4574804A
Cited
EP0157888A1
Cited
US4614187A
Cited
US4712545A
Cited
US4643190A
Cited
EP0176351A2
Cited
US4815460A
Cited
EP0240722A1
Cited
US4909789A
Cited
US4813407A
Cited
US4819633A
Cited
US4830002A
Cited
US4760848A
Cited
US4919152A
Cited
US4792330A
Cited
US4898157A
Cited
US4950273A
Cited
US4872456A
Cited
US4896661A
Cited
US5047046A
Cited
EP0380874A1
Cited
US5052402A
Cited
EP0392547A1
Cited
EP0392548A1
Cited
US5009661A
Cited
US5047049A
Cited
US4935027A
Cited
US5026379A
Cited
US5171256A
Cited
US5171258A
Cited
EP0484671A2
Cited
US5147378A
Cited
US5133724A
Cited
US5258004A
Cited
DE9106506U1
Cited
US5176699A
Cited
DE9109097U1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-12-18 | 1999-06-19 | 1999-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-12-18 | 2003-06-19 | 2003-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-12-18 | 2007-06-19 | 2007-12-19 | $7700.00 | Window Closed / Lapsed |